Uplink power control for multiple transmit-receive points

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity associated with a first transmit-receive point (TRP) and a second TRP, an uplink power control configuration that configures a first set of uplink power control parameters associated with the first TRP and a second set of uplink power control parameters associated with the second TRP. The UE may transmit, to the first TRP, a first uplink transmission based at least in part on the first set of uplink power control parameters associated with the first TRP. The UE may transmit, to the second TRP, a second uplink transmission based at least in part on the second set of uplink power control parameters associated with the second TRP. Numerous other aspects are described.

What is claimed is: 
     
         1 . An apparatus for wireless communication at a user equipment (UE), comprising:
 a memory; and   one or more processors, coupled to the memory, configured to:
 receive, from one of a first transmit-receive point (TRP) or a second TRP, an uplink power control configuration that configures a first set of uplink power control parameters associated with the first TRP and a second set of uplink power control parameters associated with the second TRP; 
 transmit, to the first TRP, a first uplink transmission based at least in part on the first set of uplink power control parameters associated with the first TRP; and 
 transmit, to the second TRP, a second uplink transmission based at least in part on the second set of uplink power control parameters associated with the second TRP. 
   
     
     
         2 . The apparatus of  claim 1 , wherein the first uplink transmission overlaps in time with the second uplink transmission. 
     
     
         3 . The apparatus of  claim 1 , wherein an uplink power control associated with the first uplink transmission and an uplink power control associated with the second uplink transmission are on a per-TRP basis. 
     
     
         4 . The apparatus of  claim 1 , wherein the first uplink transmission and the second uplink transmission are associated with different antenna panels. 
     
     
         5 . The apparatus of  claim 1 , wherein:
 the first set of uplink power control parameters are associated with a first value that indicates the first TRP; and   the second set of uplink power control parameters are associated with a second value that indicates the second TRP.   
     
     
         6 . The apparatus of  claim 5 , wherein the first value or the second value is one of: a TRP identifier (ID), a transmission configuration indicator state group ID, a transmit power control ID, a power amplifier ID, a pathloss reference signal ID, a closed-loop index, a control resource set pool index, a sounding reference signal resource set ID, a demodulation reference signal port group ID, a resource block allocation set ID, or a physical cell ID. 
     
     
         7 . The apparatus of  claim 1 , wherein the first set of uplink power control parameters includes a configured maximum uplink transmit power, and the second set of uplink power control parameters includes a second UE configured maximum uplink transmit power. 
     
     
         8 . The apparatus of  claim 1 , wherein the first uplink transmission and the second uplink transmission are associated with a same antenna panel. 
     
     
         9 . The apparatus of  claim 1 , wherein an uplink power control is associated with both the first uplink transmission and the second uplink transmission. 
     
     
         10 . The apparatus of  claim 9 , wherein the uplink power control is based at least in part on a sum of the first set of uplink power control parameters and the second set of uplink power control parameters, or wherein the uplink power control is based at least in part on a cell-level configured maximum uplink transmit power. 
     
     
         11 . The apparatus of  claim 1 , wherein the first set of uplink power control parameters and the second set of uplink power control parameters are each associated with a value that corresponds to a TRP identifier, wherein the value is mapped to an uplink transmission configuration indicator (TCI) state or a joint TCI state. 
     
     
         12 . An apparatus for wireless communication at a first transmit-receive point (TRP), comprising:
 a memory; and   one or more processors, coupled to the memory, configured to:
 transmit, to a user equipment (UE), an uplink power control configuration that configures a first set of uplink power control parameters associated with the first TRP and a second set of uplink power control parameters associated with a second TRP; and 
 receive, from the UE, a first uplink transmission based at least in part on the first set of uplink power control parameters associated with the first TRP. 
   
     
     
         13 . The apparatus of  claim 12 , wherein the first uplink transmission overlaps in time with a second uplink transmission, and wherein the second uplink transmission is based at least in part on the second set of uplink power control parameters associated with the second TRP. 
     
     
         14 . The apparatus of  claim 13 , wherein:
 the first set of uplink power control parameters are associated with a first value that indicates the first TRP; and   the second set of uplink power control parameters are associated with a second value that indicates the second TRP.   
     
     
         15 . The apparatus of  claim 14 , wherein the first value or the second value is one of:
 a TRP identifier (ID), a transmission configuration indicator state group ID, a transmit power control ID, a power amplifier ID, a pathloss reference signal ID, a closed-loop index, a control resource set pool index, a sounding reference signal resource set ID, a demodulation reference signal port group ID, a resource block allocation set ID, or a physical cell ID.   
     
     
         16 . A method of wireless communication performed by a user equipment (UE), comprising:
 receiving, from a network entity associated with a first transmit-receive point (TRP) and a second TRP, an uplink power control configuration that configures a first set of uplink power control parameters associated with the first TRP and a second set of uplink power control parameters associated with the second TRP;   transmitting, to the first TRP, a first uplink transmission based at least in part on the first set of uplink power control parameters associated with the first TRP; and   transmitting, to the second TRP, a second uplink transmission based at least in part on the second set of uplink power control parameters associated with the second TRP.   
     
     
         17 . The method of  claim 16 , wherein the first uplink transmission overlaps in time with the second uplink transmission. 
     
     
         18 . The method of  claim 16 , wherein an uplink power control associated with the first uplink transmission and an uplink power control associated with the second uplink transmission are on a per-TRP basis. 
     
     
         19 . The method of  claim 16 , wherein the first uplink transmission and the second uplink transmission are associated with different antenna panels. 
     
     
         20 . The method of  claim 16 , wherein:
 the first set of uplink power control parameters are associated with a first value that indicates the first TRP; and   the second set of uplink power control parameters are associated with a second value that indicates the second TRP.   
     
     
         21 . The method of  claim 20 , wherein the first value or the second value is one of: a TRP identifier (ID), a transmission configuration indicator state group ID, a transmit power control ID, a power amplifier ID, a pathloss reference signal ID, a closed-loop index, a control resource set pool index, a sounding reference signal resource set ID, a demodulation reference signal port group ID, a resource block allocation set ID, or a physical cell ID. 
     
     
         22 . The method of  claim 16 , wherein the first set of uplink power control parameters includes a configured maximum uplink transmit power, and the second set of uplink power control parameters includes a second UE configured maximum uplink transmit power. 
     
     
         23 . The method of  claim 16 , wherein the first uplink transmission and the second uplink transmission are associated with a same antenna panel. 
     
     
         24 . The method of  claim 16 , wherein an uplink power control is associated with both the first uplink transmission and the second uplink transmission. 
     
     
         25 . The method of  claim 24 , wherein the uplink power control is based at least in part on a sum of the first set of uplink power control parameters and the second set of uplink power control parameters, or wherein the uplink power control is based at least in part on a cell-level configured maximum uplink transmit power. 
     
     
         26 . The method of  claim 16 , wherein the first set of uplink power control parameters and the second set of uplink power control parameters are each associated with a value that corresponds to a TRP identifier, wherein the value is mapped to an uplink transmission configuration indicator (TCI) state or a joint TCI state. 
     
     
         27 . A method of wireless communication performed by a first transmit-receive point (TRP), comprising:
 transmitting, to a user equipment (UE), an uplink power control configuration that configures a first set of uplink power control parameters associated with the first TRP and a second set of uplink power control parameters associated with a second TRP; and   receiving, from the UE, a first uplink transmission based at least in part on the first set of uplink power control parameters associated with the first TRP.   
     
     
         28 . The method of  claim 27 , wherein the first uplink transmission overlaps in time with a second uplink transmission, and wherein the second uplink transmission is based at least in part on the second set of uplink power control parameters associated with the second TRP. 
     
     
         29 . The method of  claim 28 , wherein:
 the first set of uplink power control parameters are associated with a first value that indicates the first TRP; and   the second set of uplink power control parameters are associated with a second value that indicates the second TRP.   
     
     
         30 . The method of  claim 29 , wherein the first value or the second value is one of: a TRP identifier (ID), a transmission configuration indicator state group ID, a transmit power control ID, a power amplifier ID, a pathloss reference signal ID, a closed-loop index, a control resource set pool index, a sounding reference signal resource set ID, a demodulation reference signal port group ID, a resource block allocation set ID, or a physical cell ID.